I also read “Snow-White”.
Once upon a time, there was a beautiful woman. She had a wonderful looking-glass. And she asked it whether she is the most beautiful woman.
One day, however, she was said by the looking-glass that Snow-White is more beautiful than her. She was shocked and jealous so she tried to kill Snow-White, but she was not killed. After that she lived with seven dwarfs who met in a mountain.
One day the woman found Snow-White alive so she laced Snow-White’s neck. Then Snow-White lost her breath and fell down as if dead.
I think people who do wrong can't become happy.